Home / 20,424.06-28,164.39-19,233.48

Finding the Fourth Proportional to 20,424.06, 28,164.39 and 19,233.48

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Solution

The fourth proportional to 20,424.06, 28,164.39 and 19,233.48 is: 26,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.06 : 28,164.39 = 19,233.48 : x
  2. Step 2: Convert to fraction form
    20,424.06/28,164.39 = 19,233.48/x
  3. Step 3: Cross multiply
    20,424.06x = 28,164.39 × 19,233.48
  4. Step 4: Simplify right side
    20,424.06x = 541,699,231.78
  5. Step 5: Solve for x
    x = 541,699,231.78/20,424.06
  6. Step 6: Final answer
    x = 26,522.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.